title: Absolute structures of stemona-lactam S and tuberostemospiroline, alkaloids from stemona tuberosa.
abstract: A new alkaloid, stemona-lactam S, and a known alkaloid, tuberostemospiroline, were isolated from the roots of Stemona tuberosa LOUR. (Stemonaceae). Their structures and absolute stereochemistry were established by X-ray crystallography and vibrational circular dichroism.
authors.affiliation: School of Pharmacy, Tokyo University of Pharmacy and Life Sciences.
authors.forename: Haruhiko
authors.initials: H
authors.lastname: Fukaya
authors.forename: Yukio
authors.initials: Y
authors.lastname: Hitotsuyanagi
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Aoyagi
authors.forename: Zhu
authors.initials: Z
authors.lastname: Shu
authors.forename: Katsuko
authors.initials: K
authors.lastname: Komatsu
authors.forename: Koichi
authors.initials: K
authors.lastname: Takeya
mesh_terms: D000470:Alkaloids / Q000737:chemistry* / Q000302:isolation & purification; D002942:Circular Dichroism; D018360:Crystallography, X-Ray; D007769:Lactams / Q000737:chemistry* / Q000302:isolation & purification; D008968:Molecular Conformation; D018517:Plant Roots / Q000737:chemistry / Q000378:metabolism; D013141:Spiro Compounds / Q000737:chemistry* / Q000302:isolation & purification; D041901:Stemonaceae / Q000737:chemistry* / Q000378:metabolism
chemical_list: D000470:Alkaloids; D007769:Lactams; D013141:Spiro Compounds; C588051:stemona-lactam S; C588128:tuberostemospiroline